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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/surfaces/display.h"
#include "base/message_loop/message_loop.h"
#include "base/trace_event/trace_event.h"
#include "cc/debug/benchmark_instrumentation.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/compositor_frame_ack.h"
#include "cc/output/direct_renderer.h"
#include "cc/output/gl_renderer.h"
#include "cc/output/renderer_settings.h"
#include "cc/output/software_renderer.h"
#include "cc/resources/texture_mailbox_deleter.h"
#include "cc/surfaces/display_client.h"
#include "cc/surfaces/surface.h"
#include "cc/surfaces/surface_aggregator.h"
#include "cc/surfaces/surface_manager.h"
#include "cc/trees/blocking_task_runner.h"
namespace cc {
Display::Display(DisplayClient* client,
SurfaceManager* manager,
SharedBitmapManager* bitmap_manager,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
const RendererSettings& settings)
: client_(client),
manager_(manager),
bitmap_manager_(bitmap_manager),
gpu_memory_buffer_manager_(gpu_memory_buffer_manager),
settings_(settings),
device_scale_factor_(1.f),
blocking_main_thread_task_runner_(
BlockingTaskRunner::Create(base::MessageLoopProxy::current())),
texture_mailbox_deleter_(
new TextureMailboxDeleter(base::MessageLoopProxy::current())) {
manager_->AddObserver(this);
}
Display::~Display() {
manager_->RemoveObserver(this);
if (aggregator_) {
for (const auto& id_entry : aggregator_->previous_contained_surfaces()) {
Surface* surface = manager_->GetSurfaceForId(id_entry.first);
if (surface)
surface->RunDrawCallbacks(SurfaceDrawStatus::DRAW_SKIPPED);
}
}
}
bool Display::Initialize(scoped_ptr<OutputSurface> output_surface) {
output_surface_ = output_surface.Pass();
return output_surface_->BindToClient(this);
}
void Display::SetSurfaceId(SurfaceId id, float device_scale_factor) {
current_surface_id_ = id;
device_scale_factor_ = device_scale_factor;
client_->DisplayDamaged();
}
void Display::Resize(const gfx::Size& size) {
if (size == current_surface_size_)
return;
// Need to ensure all pending swaps have executed before the window is
// resized, or D3D11 will scale the swap output.
if (renderer_ && settings_.finish_rendering_on_resize)
renderer_->Finish();
current_surface_size_ = size;
client_->DisplayDamaged();
}
void Display::InitializeRenderer() {
if (resource_provider_)
return;
scoped_ptr<ResourceProvider> resource_provider = ResourceProvider::Create(
output_surface_.get(), bitmap_manager_, gpu_memory_buffer_manager_,
blocking_main_thread_task_runner_.get(), settings_.highp_threshold_min,
settings_.use_rgba_4444_textures,
settings_.texture_id_allocation_chunk_size);
if (!resource_provider)
return;
if (output_surface_->context_provider()) {
scoped_ptr<GLRenderer> renderer = GLRenderer::Create(
this, &settings_, output_surface_.get(), resource_provider.get(),
texture_mailbox_deleter_.get(), settings_.highp_threshold_min);
if (!renderer)
return;
renderer_ = renderer.Pass();
} else {
scoped_ptr<SoftwareRenderer> renderer = SoftwareRenderer::Create(
this, &settings_, output_surface_.get(), resource_provider.get());
if (!renderer)
return;
renderer_ = renderer.Pass();
}
resource_provider_ = resource_provider.Pass();
aggregator_.reset(new SurfaceAggregator(manager_, resource_provider_.get()));
}
void Display::DidLoseOutputSurface() {
client_->OutputSurfaceLost();
}
bool Display::Draw() {
if (current_surface_id_.is_null())
return false;
InitializeRenderer();
if (!output_surface_)
return false;
// TODO(skyostil): We should hold a BlockingTaskRunner::CapturePostTasks
// while Aggregate is called to immediately run release callbacks afterward.
scoped_ptr<CompositorFrame> frame =
aggregator_->Aggregate(current_surface_id_);
if (!frame)
return false;
TRACE_EVENT0("cc", "Display::Draw");
benchmark_instrumentation::IssueDisplayRenderingStatsEvent();
// Run callbacks early to allow pipelining.
for (const auto& id_entry : aggregator_->previous_contained_surfaces()) {
Surface* surface = manager_->GetSurfaceForId(id_entry.first);
if (surface)
surface->RunDrawCallbacks(SurfaceDrawStatus::DRAWN);
}
DelegatedFrameData* frame_data = frame->delegated_frame_data.get();
frame->metadata.latency_info.insert(frame->metadata.latency_info.end(),
stored_latency_info_.begin(),
stored_latency_info_.end());
stored_latency_info_.clear();
bool have_copy_requests = false;
for (const auto* pass : frame_data->render_pass_list) {
have_copy_requests |= !pass->copy_requests.empty();
}
gfx::Size surface_size;
bool have_damage = false;
if (!frame_data->render_pass_list.empty()) {
surface_size = frame_data->render_pass_list.back()->output_rect.size();
have_damage =
!frame_data->render_pass_list.back()->damage_rect.size().IsEmpty();
}
bool avoid_swap = surface_size != current_surface_size_;
bool should_draw = !frame->metadata.latency_info.empty() ||
have_copy_requests || (have_damage && !avoid_swap);
if (should_draw) {
gfx::Rect device_viewport_rect = gfx::Rect(current_surface_size_);
gfx::Rect device_clip_rect = device_viewport_rect;
bool disable_picture_quad_image_filtering = false;
renderer_->DecideRenderPassAllocationsForFrame(
frame_data->render_pass_list);
renderer_->DrawFrame(&frame_data->render_pass_list, device_scale_factor_,
device_viewport_rect, device_clip_rect,
disable_picture_quad_image_filtering);
}
if (should_draw && !avoid_swap) {
renderer_->SwapBuffers(frame->metadata);
} else {
stored_latency_info_.insert(stored_latency_info_.end(),
frame->metadata.latency_info.begin(),
frame->metadata.latency_info.end());
DidSwapBuffers();
DidSwapBuffersComplete();
}
return true;
}
void Display::DidSwapBuffers() {
client_->DidSwapBuffers();
}
void Display::DidSwapBuffersComplete() {
client_->DidSwapBuffersComplete();
}
void Display::CommitVSyncParameters(base::TimeTicks timebase,
base::TimeDelta interval) {
client_->CommitVSyncParameters(timebase, interval);
}
void Display::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
client_->SetMemoryPolicy(policy);
}
void Display::OnSurfaceDamaged(SurfaceId surface_id, bool* changed) {
if (aggregator_ &&
aggregator_->previous_contained_surfaces().count(surface_id)) {
Surface* surface = manager_->GetSurfaceForId(surface_id);
if (surface) {
const CompositorFrame* current_frame = surface->GetEligibleFrame();
if (!current_frame || !current_frame->delegated_frame_data ||
!current_frame->delegated_frame_data->resource_list.size())
aggregator_->ReleaseResources(surface_id);
}
client_->DisplayDamaged();
*changed = true;
} else if (surface_id == current_surface_id_) {
client_->DisplayDamaged();
*changed = true;
}
}
SurfaceId Display::CurrentSurfaceId() {
return current_surface_id_;
}
int Display::GetMaxFramesPending() {
int max_frames_pending =
output_surface_ ? output_surface_->capabilities().max_frames_pending : 0;
if (max_frames_pending <= 0)
max_frames_pending = OutputSurface::DEFAULT_MAX_FRAMES_PENDING;
return max_frames_pending;
}
} // namespace cc
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